<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
    <div id="app">
        {{msg}}
    </div>
</body>
<script src="./js/vue.js"></script>
<script>
    new Vue({
        data:{
            msg:"hello world"
        },
        // template:`<span>-{{msg}}-</span>`
        render(createElement){
            return createElement("span",`-${this.msg}-`)
        }
    }).$mount("#app")
</script>
</html>